Reviewed by Jonathan Teplitsky · Updated June 2026
How the VA rates sleep apnea
Sleep apnea is rated under 38 CFR 4.97, Diagnostic Code 6847 (sleep apnea syndromes) at one of four levels: 0%, 30%, 50%, or 100%. The single most important fact for most veterans is this: if a sleep study diagnoses obstructive sleep apnea (OSA) and a doctor prescribes a CPAP machine, that currently supports a 50% rating — even if the device controls your symptoms completely. There are no intermediate percentages under this code; you are assigned the level whose criteria you meet.
The sleep apnea rating table (DC 6847)
| Rating | Criteria under 38 CFR 4.97, DC 6847 |
|---|---|
| 0% | Asymptomatic, but with documented sleep-disordered breathing. |
| 30% | Persistent day-time hypersomnolence (excessive daytime sleepiness). |
| 50% | Requires use of a breathing assistance device such as a CPAP machine. |
| 100% | Chronic respiratory failure with carbon dioxide retention or cor pulmonale, OR requires a tracheostomy. |
The CPAP = 50% rule
This is the rule that decides most sleep apnea claims. The 50% criterion is met simply by requiring a breathing assistance device. In practice, when a sleep study confirms OSA and a physician prescribes a CPAP or BiPAP machine, the prescription itself is the evidence that you "require" the device. You do not have to show that the device fails or that you remain symptomatic while using it. A correctly documented CPAP prescription is therefore the difference between a 30% and a 50% rating — and it is why a sleep study plus a prescription is the goal of a well-built claim.
Eligibility criteria
To be service-connected for sleep apnea, you generally need three things:
- A current diagnosis confirmed by objective testing. The VA requires a sleep study (polysomnography) — either an in-lab study or an approved home sleep test. Symptoms alone, no matter how severe, will not establish the diagnosis.
- An in-service event, onset, or aggravation — or a service-connected condition that caused or aggravated the apnea (a "secondary" theory, below).
- A medical nexus linking the diagnosis to service. For older diagnoses or secondary claims, a nexus letter from a qualified provider is usually the linchpin of the claim.
Secondary to PTSD and to weight gain
Most service-connected sleep apnea is granted not on a direct basis but as a secondary condition. The two dominant pathways are:
- Secondary to PTSD. There is a well-recognized medical relationship between PTSD and obstructive sleep apnea, and the VA grants many claims on this theory. If you are already service-connected for PTSD, a nexus opinion connecting it to your apnea can establish service connection.
- Secondary to weight gain. If a service-connected condition (for example, a knee or back injury that limits activity, or a psychiatric condition treated with weight-affecting medication) caused weight gain, and that weight gain contributed to your sleep apnea, the apnea can be service-connected secondarily.
In both cases the medical nexus is what carries the claim. A clear physician opinion stating that the service-connected condition "at least as likely as not" caused or aggravated the apnea is the standard the VA applies.
The proposed 2025–2026 rule change (proposed — not final)
Important and timely: the VA has proposed revising DC 6847 to tighten the automatic 50%-for-CPAP standard. Under the proposed language, the higher rating would require that CPAP be ineffective or contraindicated, rather than simply prescribed. This change is proposed and pending — it is not in effect. As of this update, the current rule still applies: a prescribed CPAP supports 50%. Veterans considering a claim should not wait, since the existing, more favorable rule governs claims decided under it. We will update this page if and when a final rule is published.
C&P exam and the evidence you need
Your evidence package should center on the sleep study report (showing the diagnosis and the apnea-hypopnea index) and the CPAP prescription or equipment records. The VA may schedule a Compensation & Pension (C&P) exam; bring documentation of your device use and any provider statements. For secondary claims, the nexus letter is the most important single document. Keep copies of equipment receipts, sleep-clinic notes, and prescriptions, because the 50% level turns on demonstrating that you require the device.
How sleep apnea affects your combined rating
A 50% sleep apnea rating combines with your other conditions using VA math, and it can be a significant building block toward a higher combined rating. For veterans whose conditions prevent substantially gainful employment, a 50% apnea rating can also help reach the threshold for TDIU, which pays at the 100% rate. To see how a 50% rating stacks with your existing ratings, run the numbers through our VA disability rating calculator.
The governing regulation is 38 CFR Part 4 (see 4.97, DC 6847). This page is informational and is not legal or medical advice.
Frequently asked questions
Does a CPAP automatically mean 50%?
Under the current rule, yes — a sleep-study diagnosis of OSA plus a prescribed CPAP or BiPAP supports a 50% rating, even if the device controls your symptoms.
Is the VA changing this?
The VA has proposed (2025–2026) requiring CPAP to be ineffective or contraindicated for the higher rating. It is proposed, not final. The current 50% rule still applies.
Can I claim sleep apnea secondary to PTSD?
Yes — it is one of the most common secondary theories, along with weight gain from a service-connected condition. A medical nexus letter is usually essential.
Do I need a sleep study?
Yes. The VA requires polysomnography (in-lab or approved home study). Symptoms alone do not establish the diagnosis.
Can sleep apnea reach 100%?
Only with chronic respiratory failure (CO2 retention or cor pulmonale) or a tracheostomy. A 50% rating can still support TDIU at the 100% pay rate.